Tamiya M03/M04 Spare 3/32 Steel Balls 3RB-B332 by 3Racing  [3RB-B332]

Spare 3/32" balls for Tamiya M03/M04 chassis service

This set supplies 15 pieces of 3/32" steel balls intended as replacement rolling elements for small ball bearings and ball-type cups fitted to Tamiya M03M, M03L, M04M and M04L chassis in 1/10 touring cars. They are intended as straightforward spare parts to refresh rolling interfaces without adjusting geometry.

Functionally these balls provide the rolling contact inside bearing assemblies and ball cups used in drivetrains and steering linkages. Changing worn or imperfect balls can lower friction and eliminate play, helping the assembly to rotate more freely and predictably.

Fitment tips: remove the bearing or cup to inspect the race for scoring or grit before inserting new balls. Keep replacements clean, seat them evenly, and verify free hand rotation. Use minimal lubrication appropriate to the bearing and do not force parts as this may damage the race.

Practical tuning: renewing individual balls is a simple maintenance task that preserves tight rolling contact; correctly sized steel balls can reduce unwanted vibration and input variance in tuned 1/10 touring setups without altering suspension or gearing.